Pusher mechanical seal – KE Motion Hydro https://kemotionhydro.com/en A modern company specializing in sealing technology – Mechanical seals, Rotary unions. Tue, 02 Dec 2025 13:23:58 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://kemotionhydro.com/en/wp-content/uploads/2025/03/favicon.png Pusher mechanical seal – KE Motion Hydro https://kemotionhydro.com/en 32 32 NV SV/026 https://kemotionhydro.com/en/products/nv-sv-026/ Sun, 06 Apr 2025 13:20:06 +0000 https://kemotionhydro.com/en/proizvodi/nv-sv-026/ We offer a specialized mechanical seal for Lowara SV pumps, the NV-SV-026 model. This seal is specifically engineered for a stepped shaft configuration (d22/d26 mm) found in larger pump models.

It features a robust central spring design and is balanced, ensuring reliable operation under high pressure. The seal operates independently of the direction of rotation.

Compatible Pump Models:
Designed for the following Lowara SV series:

  • SV 33

  • SV 46

  • SV 66

  • SV 92

Seal faces materials:

  • carbon В
  • Silicone carbide Q1

Secondary sealing materials:

  • EPDM (E)
  • NBR (P)
  • FKM (V)

Operating limits:

  • p = 20 bar
  • t = -30 … 120°C
  • v = 20 m/s

Type: Pusher mechanical seal
For pumps: Lowara SV 33, 46, 66, 92
Replacement: Lowara, AES P0LXB

]]> NV SR https://kemotionhydro.com/en/products/nv-sr/ Sun, 06 Apr 2025 13:20:06 +0000 https://kemotionhydro.com/en/proizvodi/nv-sr/ Special single mechanical seals for Alfa Laval pumps series SSP SR/SRU

Sizes:

  • SR1 (shaft 20 mm)
  • SR2 (shaft 30 mm)
  • SR3 (shaft 35 mm)
  • SR4 (shaft 45 mm)
  • SR5 (shaft 55 mm)
  • SR6 (shaft 75 mm)

Seal faces material combinations:

  • Special CrMo steel/carbon
  • Carbon/Silicone carbide
  • Silicone carbide/Silicone carbide

O-ring materials: EPDM, Viton or NBR

]]> NV-1 https://kemotionhydro.com/en/products/nv-1/ Sun, 06 Apr 2025 13:20:06 +0000 https://kemotionhydro.com/en/proizvodi/nv-1/ We offer a high-quality General purpose mechanical seal, the NV-1 model, designed specifically for water and chemical pumps. This seal features a robust multiple spring design, ensuring uniform face loading and extended service life.

It is an unbalanced seal and is independent of the direction of rotation, making it versatile for various industrial applications. The fitting dimensions are strictly according to DIN 24960 (EN12756), ensuring seamless interchangeability with standard housings.

Seal faces materials:

  • Resin impregnated caron(В)
  • Antimony impregnated carbon (A)
  • special CrMo steel(Е)
  • tungsten carbide (U3)
  • silicon carbide (Q1, Q2)
  • ceramics Al O (V) 2 3

Secondary sealing materials:

  • Fluorcarbon rubber, FKM (V)
  • Nitrile-butadiene-rubber (P)
  • Ethylene propylene
  • rubber, EPDM (E)
  • Perfluorocarbon rubber, FFKM (for example Kalrez®, etc.), (K)
  • PTFE

Operating limits:

  • p = 16 (25) bar
  • t = -50 … 220°C
  • v = 20 m/s

Type: Pusher mechanical seal
Replacement:John Crane 58U / 59U, Burgmann M74N , AES M03

]]> NV-D SR https://kemotionhydro.com/en/products/nv-d-sr/ Sun, 06 Apr 2025 13:20:06 +0000 https://kemotionhydro.com/en/proizvodi/nv-d-sr/ Special double mechanical seals for Alfa Laval pumps series SSP SR/SRU

Sizes:

  • SR1 (shaft 20 mm)
  • SR2 (shaft 30 mm)
  • SR3 (shaft 35 mm)
  • SR4 (shaft 45 mm)
  • SR5 (shaft 55 mm)
  • SR6 (shaft 75 mm)

Seal faces material combinations:

  • Special CrMo steel/carbon
  • Carbon/Silicone carbide
  • Silicone carbide/Silicone carbide

O-ring materials: EPDM, Viton or NBR

]]> NV-2 https://kemotionhydro.com/en/products/nv-2/ Sun, 06 Apr 2025 13:20:06 +0000 https://kemotionhydro.com/en/proizvodi/nv-2/ We offer a robust General purpose mechanical seal, the NV-2 model, engineered for water and chemical pumps. Unlike multi-spring designs, this model features a robust single central spring, which provides excellent reliability especially in media containing solids or high viscosity.

It is an unbalanced seal and is independent of the direction of rotation. The fitting dimensions strictly follow the DIN 24960 (EN12756) standard, ensuring easy replacement and compatibility.

Seal faces materials:

  • Resin impregnated caron(В)
  • Antimony impregnated carbon (A)
  • special CrMo steel(Е)
  • tungsten carbide (U3)
  • silicon carbide (Q1, Q2)
  • ceramics Al O (V) 2 3

Secondary sealing materials:

  • Fluorcarbon rubber, FKM (V)
  • Nitrile-butadiene-rubber (P)
  • Ethylene propylene
  • rubber, EPDM (E)
  • Perfluorocarbon rubber, FFKM (for example Kalrez®, etc.), (K)
  • PTFE

Operating limits:

  • p = 16 (25) bar
  • t = -50 … 220°C
  • v = 20 m/s

Type: Pusher mechanical seal
Replacement: Burgmann M78N

]]> NV FL https://kemotionhydro.com/en/products/nv-fl/ Sun, 06 Apr 2025 13:20:06 +0000 https://kemotionhydro.com/en/proizvodi/nv-fl/
  • Special mechanical seals for FLYGT pumps
  • Primary and secondary (Lower and upper)
  • Ready to fit
  • Pump type or OEM seal number is sufficient for the order

    • Dimensions:

    Flygt pump type® Seal size NV FL   Flygt pump typet® Seal size NV FL
    2004,2008,2012,2016 15 mm 3153 35 mm
    2024 20 mm 3170 60 mm
    2050,2052 15 mm 3171 45 мм
    2060 20 мм 3200 60 мм
    2066 20 мм 3201 60 мм
    2070 22 мм 3202 60 мм
    2071 22 мм 3230, 3305, 3357 90/80 мм
    2075 20 мм 3231, 3306, 3356 90/80 мм
    2082-330 22 мм 3300 90/80 мм
    2084 35 мм 3310, 3350 90/120 мм
    2090,2125,2140 28 мм 3311, 3312 90/120 мм
    2135 35 мм 3351 90/120 мм
    2101 20 мм 3355 90/80 мм
    2102 22 мм 3400, 3501, 3531, 3602 90 мм
    2151-010,-011,-050 35 мм 3500, 3530, 3600, 3601 90/120 мм
    2201-010 45/35 мм 3800 90/120 мм
    2201-011 HT/MT 45/35 мм 4351,4352, 4400 20 мм
    2201-011 LT 45/35 мм 4410, 4430, 4460 60 мм
    2201-080,  -320, -430, -480, -590, -690 45/35 мм 4450 35 мм
    2250 60 мм 4630, 4640 45 мм
    2400 60 мм 4650, 4660 45 мм
    2610, 2620 20 мм 4670, 4680 60 мм
    2630, 2640 20 мм 5100-210, -211, -220, -221 35 мм
    2660 25 мм 5100-250, -251, -260, -261 45 мм
    2670 35 мм 5100-300, -310 60 мм
    3041 (кроме -250) 20 мм 5150-300, -310 60 мм
    3057 20 мм 5150-350, -360 90 мм
    3065 20 мм 5530 35 мм
    3067 20 мм 5540 45 мм
    3068 20 мм 7045 60 мм
    3080 (кроме -330) 20 мм 7050, 7051 90/80 мм
    3080-330 35 мм 7060, 7076 90/80 мм
    3082 22 мм 7055, 7061 90/80 мм
    3085 20 мм 7080 90/80 мм
    3101 28 мм 7081, 7101, 7121 90 мм
    3102 25 мм 7100, 7115, 7120, 7140 90/120 мм
    3126-090, 3126-180 35 мм 7570, 7585 90/120 мм
    3126-091, -180, -280, -290, -998 35 мм эл.моторы 600 серии 90 мм
    3126-181 35 мм эл.моторы 700 серии 90 мм
    3127 35 мм эл.моторы 800 серии 105 мм
    3140 (кроме -980) 45 мм эл.моторы 900 серии 105 мм
    3152 45 мм
    ]]>         NV-3 https://kemotionhydro.com/en/products/nv-3/ Sun, 06 Apr 2025 13:20:06 +0000 https://kemotionhydro.com/en/proizvodi/nv-3/ We offer a high-performance General purpose mechanical seal, the NV-3 model, suitable for water and chemical pumps. The distinctive feature of this model is its robust super sinus spring design, which offers superior axial flexibility and resistance to clogging in certain applications.

    It is an unbalanced seal and is independent of the direction of rotation. Like the rest of the series, the fitting dimensions adhere strictly to DIN 24960 (EN12756), ensuring seamless integration into existing systems.

    Seal faces materials:

    • Resin impregnated caron(В)
    • Antimony impregnated carbon (A)
    • special CrMo steel(Е)
    • tungsten carbide (U3)
    • silicon carbide (Q1, Q2)
    • ceramics Al O (V) 2 3

    Secondary sealing materials:

    • Fluorcarbon rubber, FKM (V)
    • Nitrile-butadiene-rubber (P)
    • Ethylene propylene
    • rubber, EPDM (E)
    • Perfluorocarbon rubber, FFKM (for example Kalrez®, etc.), (K)
    • PTFE

    Operating limits:

    • p = 16 (25) bar
    • t = -50 … 220°C
    • v = 20 m/s

    Type: Pusher mechanical seal
    Replacement:: Burgmann M7N , AES W07D, Flowserve Europac 600

    ]]>         BV-2 KS/120 https://kemotionhydro.com/en/products/bv-2-ks-120/ Sun, 06 Apr 2025 13:20:06 +0000 https://kemotionhydro.com/en/proizvodi/bv-2-ks-120/
  • Special single mechanical seal for KSB SEWATEC / AMAREX KRT pumps
  • Multiple spring unit design
  • Springs are protected from the contact with product
  • Stationary spring unit
  • Balanced
  • Shaft diameter: ф120 мм

    • Seal faces materials:

    • silicone carbide (Q1, Q2)
    • Antimony carbon (A)

    Secondary sealing materials:

    • фторкаучук, FKM (V)

    Springs:

    • X12CrNi17.7

    Other parts:

    • Stainless steel 316L

    For pumps: KSB
    Replacement: Burgmann CARTEX-S10/120-E1/E2

    ]]>         NV-4 https://kemotionhydro.com/en/products/nv-4/ Sun, 06 Apr 2025 13:20:06 +0000 https://kemotionhydro.com/en/proizvodi/nv-4/ We offer a compact General purpose mechanical seal, the NV-4 model, specifically engineered for applications with limited space. Its distinctive wave seal design allows for a significantly short axial installation length, making it the ideal solution where standard length seals cannot fit.

    It is an unbalanced seal and is independent of the direction of rotation, providing reliable performance in restricted housing environments.

    Seal faces materials:

    • Resin impregnated caron(В)
    • Antimony impregnated carbon (A)
    • special CrMo steel(Е)
    • tungsten carbide (U3)
    • silicon carbide (Q1, Q2)

    Operating limits:

    • p = 16 (25) bar
    • t = -50 … 220°C
    • v = 20 m/s

    Type: Pusher mechanical seal
    Replacement: AES W02, ROTEN UNITEN 7K

    ]]>         BV–1 GF https://kemotionhydro.com/en/products/bv-1-gf/ Sun, 06 Apr 2025 13:20:06 +0000 https://kemotionhydro.com/en/proizvodi/bv-1-gf/
  • Mechanical seal type DBUE/DQQE for Grundfos pumps series TP-HP
  • Multiple spring unit design
  • Balanced
  • Undepended of the rotation direction

    • Seal faces materials:

    • DBUE – Carbon/Tungsten Carbide
    • DQQE – Silicone carbide/Silicone carbide

    Operation limits:

    • p = 25 (40) bar
    • t = -50 … 220°C
    • v = 20 m/s

    Type: Pusher mechanical seal
    For pumps: Grundfos
    Replacement: John Crane 8B1

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